Wheeled vehicle with control system

Abstract

A vehicle movable on at least first and second wheels utilizing a first platform having wheels attached to the same. A second platform is rotatably attached to the first platform and spaced outwardly from the first and second wheels attached to the first platform. Bosses, fixed to the second platform, extend to the vicinity of the first platform wheels. Linkage, such as rods, are rotatably attached to the bosses and to the wheels for provision of steering and braking controls.

What is claimed is: 
     
       1. A vehicle movable on at least first and second swiveling wheels comprising: a. a first platform, the first and second swiveling wheels being connected to said first platform for turning thereto;   b. a second platform overlying said first platform, said second platform rotatably attached to said first platform, said second platform spaced further outwardly from the first and second swiveling wheels than said first platform; and   c. a steering mechanism comprising a boss fixed to said second platform and extending to the vicinity of the first and second swiveling wheels connected to said first platform, said boss moving relative to said first platform with rotation of said second platform; said steering mechanism further comprising a first link rotatably attached to said boss and rotatably attached to said first swiveling wheel, and a second link rotatably attached to said boss and rotatably attached to said second swiveling wheel.   
     
     
       2. The vehicle of claim 1 having third and fourth swiveling wheels connected to said first platform, and in which said boss is a first boss, and which further comprises a second boss fixed to said second platform, said second boss extending to the vicinity of the third and fourth wheels, a third link rotatably attached to said second boss and rotatably attached to said third swiveling wheel, and a fourth link rotatably attached to said second boss and rotatably attached to said fourth swiveling wheel. 
     
     
       3. The vehicle of claim 2 in which said first platform includes first and second slots therethrough, said first and second bosses extending through said first and second slots respectively. 
     
     
       4. The vehicle of claim 1 in which said first and second links comprise elongated rods. 
     
     
       5. The vehicle of claim 2 in which said third and fourth links comprise elongated rods. 
     
     
       6. The vehicle of claim 1 which additionally comprises a tab connected to said first swiveling wheel, said tab including a first fastening site and a second fastening site, said first link being rotatably selectively connected to said tab of said first swiveling wheel at said first and second fastening sites. 
     
     
       7. The vehicle of claim 6 in which said tab is a first tab and additionally comprises a second tab connected to said second swiveling wheel, said second tab including a first fastening site and a second fastening site, said second link being rotatably selectively connected to said tab of said second swiveling wheel at said first and second fastening sites. 
     
     
       8. The vehicle of claim 2 which additionally comprises one tab connected to said third swiveling wheel, said one tab including first and second fastening sites, said third link being selectively rotatably connected to said one tab at said first and second fastening sites. 
     
     
       9. The vehicle of claim 8 which additionally comprises another tab connected to said fourth swiveling wheel, said another tab including first and second fastening sites, said fourth link being selectively rotatably connected to said another tab at said first and second fastening sites. 
     
     
       10. The vehicle of claim 1 in which said second platform includes first and second portions each independently rotatably attached to said first platform. 
     
     
       11. The vehicle of claim 10 which additionally comprises means for adjusting the distance between said first and second portions of said second platform. 
     
     
       12. The vehicle of claim 10 having third and fourth swiveling wheels connected to said first platform, and in which said boss is a first boss, and which further comprises a second boss fixed to said second platform, said second boss extending to the vicinity of the third and fourth wheels, a third link rotatably attached to said second boss and rotatably attached to said third swiveling wheel, and a fourth link rotatably attached to said second boss and rotatably attached to said fourth swiveling wheel. 
     
     
       13. The vehicle of claim 12 in which said first platform includes first and second slots therethrough, said first and second bosses extending through said first and second slots, respectively. 
     
     
       14. The vehicle of claim 10 which additionally comprises a tab connected to said first swiveling wheel, said tab including a first fastening site and a second fastening site, said first link being rotatably selectively connected to said tab of said first swiveling wheel at said first and second fastening sites. 
     
     
       15. The vehicle of claim 14 in which said tab is a first tab and additionally comprises a second tab connected to said second swiveling wheel, said second tab including a first fastening site and a second fastening site, said second link being rotatably selectively connected to said tab of said second swiveling wheel at said first and second fastening sites. 
     
     
       16. The vehicle of claim 12 which additionally comprises one tab connected to said third swiveling wheel, said one tab including first and second fastening sites, said third link being selectively rotatably connected to said one tab at said first and second fastening sites. 
     
     
       17. The vehicle of claim 16 which additionally comprises another tab connected to said fourth swiveling wheel, said another tab including first and second fastening sites, said fourth link being selectively rotatably connected to said another tab at said first and second fastening sites.